<template>
  <div class="loading-overlay">
    <div class="loading-spinner"></div>
  </div>
</template>

<script setup>
// 无需额外逻辑
</script>

<style scoped>
.loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(255, 255, 255, 0.7);
  z-index: 9999;
  display: flex;
  justify-content: center;
  align-items: center;

  .loading-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid #f3f3f3;
    border-top: 4px solid var(--el-color-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
  }
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}
</style>
